What Is Market Capitalization?

Market capitalization (market cap) is the total value of a company's outstanding shares of stock. It is calculated by multiplying the stock price by the number of shares outstanding.

Market Cap Categories

  • Large cap: $10 billion+ (stable, established companies)
  • Mid cap: $2-10 billion (growth potential with moderate risk)
  • Small cap: $300 million - $2 billion (higher growth potential, higher risk)
  • Micro cap: Under $300 million (speculative, high risk)

Why Market Cap Matters

Market cap helps investors understand a company's size, risk profile, and growth potential. Large caps tend to be more stable, while small caps offer higher growth potential with greater volatility.

Frequently Asked Questions

Market cap represents the public market's valuation of a company. It may differ from the company's intrinsic value or book value.
Most portfolios include a mix. Large caps provide stability, while small caps offer growth potential. Your allocation depends on risk tolerance.
James Chen
James Chen

James Chen is a contributor to Investoria Hub, providing educational content to help readers make informed financial decisions.

Last updated: March 30, 2026